func (exp *Expression) Execute(item *item.Item) bool {
itemValue := reflect.ValueOf(*item)
itemPointerValue := reflect.ValueOf(item)
//Put in the appropriate Values
for i := 0; i < len(exp.tokens); i++ {
if exp.tokens[i].tokenType == type_VARBOOL {
exp.tokens[i].boolValue = itemValue.Field(exp.tokens[i].index).Bool()
} else if exp.tokens[i].tokenType == type_VARFLOAT {
exp.tokens[i].floatValue = itemValue.Field(exp.tokens[i].index).Float()
} else if exp.tokens[i].tokenType == type_MAPBOOL {
exp.tokens[i].boolValue = item.GetBoolModValue(exp.tokens[i].mapKey)
} else if exp.tokens[i].tokenType == type_MAPFLOAT {
exp.tokens[i].floatValue = item.GetFloatModValue(exp.tokens[i].mapKey)
} else if exp.tokens[i].tokenType == type_METHODBOOL {
results := itemPointerValue.Method(exp.tokens[i].index).Call(nil)
exp.tokens[i].boolValue = results[0].Bool()
} else if exp.tokens[i].tokenType == type_METHODFLOAT {
results := itemPointerValue.Method(exp.tokens[i].index).Call(nil)
exp.tokens[i].floatValue = results[0].Float()
} else if exp.tokens[i].tokenType == type_VARSTRING {
exp.tokens[i].stringValue = itemValue.Field(exp.tokens[i].index).String()
}
}
//Execute with real numbers
stack := newStack()
for i := 0; i < len(exp.tokens); i++ {
tok := exp.tokens[i]
if tok.tokenType == type_OPERATOR {
if tok.operator == operator_NOT {
stack.push(&token{tokenType: type_BOOL, boolValue: !stack.pop().boolValue})
} else {
stack.push(applyOperator(tok, stack.pop(), stack.pop()))
}
} else {
stack.push(tok)
}
}
/*fmt.Print("Executing: ")
printTokens(exp.tokens)
fmt.Print("Result: ")
printTokens(stack.content)*/
return stack.pop().boolValue
}
func (filter *Filter) Execute(it *item.Item) string {
boolValues := make([]bool, filter.boolIndex)
floatValues := make([]float64, filter.floatIndex)
stringValues := make([]string, filter.stringIndex)
boolIndex := 0
floatIndex := 0
stringIndex := 0
//***Plug in all the data from an item***
itemValue := reflect.ValueOf(*it)
numFields := itemValue.Type().NumField()
//Variables
for i := 0; i < numFields; i++ {
if itemValue.Type().Field(i).Type.Name() == "bool" {
boolValues[boolIndex] = itemValue.Field(i).Bool()
boolIndex++
} else if itemValue.Type().Field(i).Type.Name() == "float64" {
floatValues[floatIndex] = itemValue.Field(i).Float()
floatIndex++
} else if itemValue.Type().Field(i).Type.Name() == "string" {
stringValues[stringIndex] = itemValue.Field(i).String()
stringIndex++
}
}
//Methods
itemValue = reflect.ValueOf(it)
numMethods := itemValue.Type().NumMethod()
for i := 0; i < numMethods; i++ {
if itemValue.Type().Method(i).Type.String() == "func(*item.Item) bool" {
results := itemValue.Method(i).Call(nil)
boolValues[boolIndex] = results[0].Bool()
boolIndex++
} else if itemValue.Type().Method(i).Type.String() == "func(*item.Item) float64" {
results := itemValue.Method(i).Call(nil)
floatValues[floatIndex] = results[0].Float()
floatIndex++
} else if itemValue.Type().Method(i).Type.String() == "func(*item.Item) string" {
results := itemValue.Method(i).Call(nil)
stringValues[stringIndex] = results[0].String()
stringIndex++
}
}
//MapKeys
for _, description := range item.ItemBoolMods { //The values in item.ItemMods are the keys to the item modifiers in the actual item
index, _ := globalBoolIndices[description]
boolValues[index] = it.GetBoolModValue(description)
}
for _, description := range item.ItemFloatMods { //The values in item.ItemMods are the keys to the item modifiers in the actual item
index, _ := globalFloatIndices[description]
floatValues[index] = it.GetFloatModValue(description)
}
// Functions
for i := 0; i < len(filter.functions); i++ {
f := filter.functions[i]
tok := f.evaluate(boolValues, floatValues, stringValues, it.PossibleAffixes)
//fmt.Println("Function: ", f.name, ", Values: ", tok.boolValue, " / ", tok.floatValue, " / ", tok.stringValue)
if tok.tokenType == type_BOOL {
index, _ := filter.boolIndices[f.name]
boolValues[index] = tok.boolValue
} else if tok.tokenType == type_FLOAT {
index, _ := filter.floatIndices[f.name]
floatValues[index] = tok.floatValue
} else if tok.tokenType == type_STRING {
index, _ := filter.stringIndices[f.name]
stringValues[index] = tok.stringValue
} else {
panic("Unknown token type returned from function.")
}
}
return filter.parentCondition.getWarning(boolValues, floatValues, stringValues, it.PossibleAffixes)
}